The Senate Armed Services Committee is proposing legislation mandating the Defense Department develop an "interim" Ground-based Interceptor capability to upgrade the current homeland ballistic missile defense fleet and field 20 of the new guided missiles in currently empty Alaska silos by the mid-2020s, a project that -- if enacted -- could siphon funds from the Missile Defense Agency's priorities. The Senate panel, in its mark of the fiscal year 2021 defense policy bill , advances a proposal for a GBI...